Visual Encoding
Circle Size = Magnitude
● M 3-4 (Minor)
● M 4-5 (Light)
● M 5-6 (Moderate)
● M 6-7 (Strong)
● M 7+ (Major)
Circle Color = Depth
● Very Shallow (0-10 km)
● Shallow (10-20 km)
● Deeper (>20 km)
💡 Layer Guide:
• All Earthquakes: Toggle on/off, click for details
• Major Events: Historic quakes (1800-2024)
• Context Layers: Faults & population toggleable
• Zoom in to see individual earthquakes